Grin wallet check/repair (#2256)

* first pass at basic check_fix process

* rustfmt

* unlocks and tx log entry reversals in place

* log restore output at warn

* rename check_repair

* rename check_repair

* add command line functionality and sanity test

* rustfmt

* update wallet usage doc with check_repair

* doc update

* consistency in NotEnoughFunds output

* consistency in NotEnoughFunds output

src/bin/cmd/wallet_args.rs

@@ -504,6 +504,7 @@ pub fn wallet_command(
 			command::cancel(inst_wallet(), a)
 		}
 		("restore", Some(_)) => command::restore(inst_wallet()),
+		("check_repair", Some(_)) => command::check_repair(inst_wallet()),
 		_ => {
 			let msg = format!("Unknown wallet command, use 'grin help wallet' for details");
 			return Err(ErrorKind::ArgumentError(msg).into());

src/bin/cmd/wallet_tests.rs

@@ -443,6 +443,28 @@ mod wallet_tests {
 			Ok(())
 		})?;
 
+		// Another file exchange, don't send, but unlock with repair command
+		let arg_vec = vec![
+			"grin",
+			"wallet",
+			"-p",
+			"password",
+			"-a",
+			"mining",
+			"send",
+			"-m",
+			"file",
+			"-d",
+			&file_name,
+			"-g",
+			"Ain't sending",
+			"10",
+		];
+		execute_command(&app, test_dir, "wallet1", &client1, arg_vec)?;
+
+		let arg_vec = vec!["grin", "wallet", "-p", "password", "check_repair"];
+		execute_command(&app, test_dir, "wallet1", &client1, arg_vec)?;
+
 		// txs and outputs (mostly spit out for a visual in test logs)
 		let arg_vec = vec!["grin", "wallet", "-p", "password", "-a", "mining", "txs"];
 		execute_command(&app, test_dir, "wallet1", &client1, arg_vec)?;

src/bin/grin.yml

@@ -292,5 +292,7 @@ subcommands:
                   long: recovery_phrase
                   takes_value: true
         - restore:
-            about: Initialize a new wallet seed file and database
+            about: Restores a wallet contents from a seed file
+        - check_repair:
+            about: Checks a wallet's outputs against a live node, repairing and restoring missing outputs if required